I have an old Lumia 521 I used for about 6 months on Metro, but they won't give the unlock code. I tried calling customer service, and after 6 times, someone finally told me that the phone was a BYOD phone. Well, that's not true because the phone is locked to Metro (my T-Mobile sim won't work) and it when it boots, it shows a MetroPCS splash screen
I even gave them the IMEI, but they said the same thing. Is there anything they (or T-Mobile) can do about this?
